
What is the growth trend of the air compressor market size?
- A. steady growth
- B. fluctuating growth
- C. declining year by year
- D. stagnant
Answer: A. steady growth
A. ISO 50001 B. Germany Tüv “0” level oil-free certification C. CE certification D. IATF 16949 Answer: B Analysis: Germany’s Tüv “0” level oil-free certification is specially used for testing…
A. Backwardness of energy-saving technology B. Advanced energy-saving technology C. Don’t pay attention to energy-saving technologies D. General answer to energy-saving technology: B. Advanced energy-saving technology
A.±0.5% B.±1.5% C.±2.5% D.± 5% Answer: B Analysis: The accuracy of flow meters complying with GB/T 13466 standard is ± 1.5%.
A. Brand and model B. Color and appearance C. Production date D. Answer to transportation method: A. make and model
A. Annex B B. Annex C C. Annex D D. Annex E Answer: C Analysis: The gas production standard corresponds to ISO 1217 Annex D.